Please indicate the most appropriate study design for the following research que
ID: 3044045 • Letter: P
Question
Please indicate the most appropriate study design for the following research questions, and justify your choice:
a. A researcher wants to compare the effects of two different drugs on the management of irritable bowel syndrome.
b. A health promotion campaign aims to encourage women above 45 years to screen for breast cancer. The health professionals in charge decide first to estimate the knowledge, attitude and practice of the target population.
c. A researcher hypothesizes that female nurses who are occupationally exposed to waste anesthetic gases in operating rooms are more at risk of miscarriage and birth defects when they become pregnant than nurses working in other hospital departments.
d. An investigator wants to assess the association between smoking and bladder cancer in men of 50 years or more.
e. A pediatric physician hypothesizes that children who were born prematurely or with low birth weight (LBW) are more at risk of developing autism later in life. He decides to rely on the medical records of children who were born 5 years back, and identifies 650 children who were born prematurely or with LBW and 4421 children who were born full-term and of normal weight.
Explanation / Answer
a) Randomized controlled design
b) cohort study
c) observational study
d) case control study
e) prospective study.